Type-writing machine.



E B HBSS TYPE WRITING MACHTNE. A

APPLIQATIION HLBD 11:13.18, 1910.

' Patented 11611.21, 1911.

.To all whom 'it may concern:

L UNITED" sTATEs PATENT' onirica.

`EDTABD B. HESS, 0F NEW YORK, N'. Y., ASSIGNGB T0 THE ROYAL TYPEWRITER COM- PANY, OF NEW YORK, N. Y., A CRPBATION OF NElV JERSEY.

TYPE-TRITIG MCHINE.

lle it known that Il, Eowano B. H1155, a citizen of the United States of America, re-

siding inthe borough of Manhattan, city. i count-y., and State of New ork, have ini vented a certain new anduseful Improvement in 'J'ypeWrit-ing Machines, of which the follow-'ing is a specification.

yThis invention relates-to ribbon vibrator actuating devices. particularly applicable to i front. strike machines, designed to impart ditlerent extents of movement to the vibrathe organization disclosed in my application tiled April 16, 1909, Serial Number 490.2l-E,

and upon that shown in my Patent )l 874,338, dated December 17, 1907.

In the accompanying drawing, Figure 1 is a longitudinal section;'Fi0'. 2, a detailed plan, on an enlarged scale, of an adjustable rotative block, shown in F ig. 1,'having stop surfaces of different radius for arresting the ribbon Vibrator; and Fig. 3 is a section on the line A, B, of Fig. 1.

The general construction is, in many respects, the saine as that of the typewriting machine known as the Standard manu` factured by the Roval Typewriter Coinpany. The lshift railv3 has extending downward from it adjacent each end an arm 80 f to the lower ends of which are pivoted Lorizontally disposed parallel links 92 whose rear ends are' pivoted to the side plates of the main frame of the machine. At the tops of arms 80 adjacentthe shift rail 3 are also pivoted parallel links `83 carried by a rock shaft 81 and shown in the form of webs or plates of somewhat triangular shape. A lateral project-ion 83 on one or Specification of Letters Pate-nt. i llltvllfttl F01). 21, 1911. il Application filed February 13, 191i?. Serial No. 544.541. I

90 is carried inthe ends of links SQ turning loosely on the rock shaft Sl and connected by a transverse rod 8'2: and in the center vof the machine there is a rod or link Jl carried by the universal bar Sl() and transverse rod S2'. The universal bar is drawn fo ird b v hook links 92 each connected to a plate 93 clipped to a type bai' operating link 30 and surromnled by a coiled spring connected at the front to said plaie. and at its rear end engaged in an aperture in a plate 94. There is one such link 912 for each tvpeimr link 30. Consequently. when the links 30 are drawn forward to throw the type liars to the printingr point the universal bar is drawn forward. Of course, the links 3l) may be actuated by ke)v levers; or. they :nai` be operated by finger steinsor push pinsas is the case in the well known Royal Standard machine.

horizontally disposed arm or thrust link S is pivoted intermediate itsl ends at St to the end of the short. arm ll of the ribbon vibrator bell c aiik. The longer horizontal arm 3 of the bell crank haspivoted to it at.V

surface 98 is nearer the pivot 96 than is the surface 9T and consequentli7 as the universal bar has a definite limited extent of movement contact of projection-99 with surface- 98 will produce less forward endwise Inovenent. of the link than if projection 99 contacted with, surface 97. In the position shown on forward movement of the universal har, projection 99 acting on surface 98 would drive link 95 forward 'and effect through the bell crank G. 1.1, such elevation of the ribbon vibrator 9 as is adequate to effect printing from the upper zone of the ribbon. ll'lhere. however. thc lowe: end of a rin 95 is depressed and projection 99 comes in Contact with surface 9T a greater forward endwise movement will be imparted to the arm and consequentbv the ribbon vibrator i will be elevated toa greater extent-suicient to effect impressions from the lower zone of the ribbon.

Means are provided for rocking the arm 95 about its axis or pivot 9G to bring either surface 97v or 98 into position to coperate with projection 99,4 or to so adjust the arm 95 (for stencil work) that it will not be engaged at all by projection 919 and the ribbon vibrator will, in such case, remain at rest.

' Pivoted to the forward cod of arm 95 is an upwardly extending link 100 whose upper vao end is pivoted to a horizontally disposed radial projection 101 from a block 10:2 lixed to a rock shaft 103. f A downwardly extendin'g projection 1.01 from the same block is .connected by link with a rocking lever 105 pivoted at the front of the machinev to theleft hand side plate thereof. The link 50 may be therefore caused to rock the block 102 and so elevate land depress the forward end of arm 95 to effect properadjustment of .its rear end for the purpose described. The

block 102 is formed with a hub 106 provided with a tapped aperture to receive a screw for binding it to the rock shaft. The block 102 is angular in side elevation having five fiat faces, the three upper ones107, 108 109 of which coperate withV a positioning ieaf springrllO secured at its rear end to the 'Tkn .Fnnn 110 n +L l uw edge or angle attwhich this surface and vthat 111 meet, 4form two stop surfaces for limiting the upward movement of the forwardl extending arm 6 of the ribbon vibrator be l crank-Ato thereby positively arrest the throw of the ribbon vibrator.

lVith the partsin position indicated, the arm 6 of the bell crank will abut against the corner of the block at which the Surfaces 111, 112 meet. This corner is farther from the axis 103 than isthe surface 112. If the block be rocked to carry 1 itsk arm 101 upwardly, the rear end of arm 95 will be lowered and its surface 97 will be brought into operative relation to projection 99. In such case, the surface 112 of the'block will be brouoht into position to arrest the bell crank arm o at such point to permit printing honr the next or lower zone of the ribbon. If,

' however, the Hock be rocked to carry arm 101 downwardly until the edge at which v surfaces 111 andV 109 meet is opposite the to such a point as to lift the rear'edge of arm 95 above the nath of the projection 99. The spring 113 will tend to vhold the lever arm 105 in this position. Ifthe arm 105 be in the position shown, the spring 113 will tend to retain it in that position and the arm will bear against a projection 115 on a spring arm 116 attached to the side plate of the frame.- In this' position the lmachine is adjusted for printin from the u'pper zone of the ribbon. 1f tie spring arm 110 be pressed laterally to carry the stop projection 115 out of the path ofthe lever arm 105, the l latter may then be drawn forward until arrested by stop 117 against which it will be held by reactlon of spring 113 and the adjustment then,.as already stated, will be for printing from the lower zone of the ribbon. The arm 95 operates :is a thrust arm or link- Its pivotal connection with the bell crank arm 11 is incidental to its adjustment for the purpose of varying the throw of the vibrator. It has the advantage of acting directly upon the ribbon vibrator bell crank to which it is attached and makes possible'a simple effective construction comprising `a small number of parts. v

The spring 113 may be dispensedwith if the spring 110 which locates the cams is made strong enough to take care of both the cam and lever 105. j

,I claim-` 1. Ribbon mechanism for a typewriting, machine, comprising aribbon vlbrator, ltsoperating bell crank lever having one of its arms horizontally disposed and operatively connected with the vibrator, a horizontally` l disposed endwise movable arm pivotedto the other arm of the bell crank lever and having at its rear surfaces at different disto operate upon either of said surfaces to impart different extents of movement to the endwise movable arm and means for adjusting the rear end of said arm vertically to bring either of said surfaces intol operative relation to said part to effect a desired extent of movement of the vibrator.

2. Ribbon mechanism for a. typewriting machine, comprising a ribbon vibrator, its operating bell crank lever having one of its arms horizont-ally dis osed and operatively connected with the vib disposed endwise movable arm pivoted intermediate its ends to the other arm of the bell crank lever and having atits rear end surfaces 'at different distances from its pivot, a part operated by the movement of the universal bar and adapted to operate upon either of said. surfaces to impart different extents of l-nfxovc'anent to the' endwise mova le arm and means connected to the endwise movable arm in front of its pivot to etfect adjustment of fits. rear end to bring either lof said surfacesinto operative relation to said part to effect a desired extent versal bar and adapted to operate upon .either of said surfaces vto impart different extents of movement to the endwise movable arm, and 'adjust-able means appliedto the n n u endwise movable part serving to move its rear end vertically to bring either of said f surfaces into operative relation to said part actuated by the universal bar to ctect a desired extent. of movement of the vibrator- 4. Ribbon mechanism for a typewriting machine comprising a'ribbon vibrator,A a bell crank lever having a horizontal arm operatively connected with the vibrator and a .downwardly extending arm, an endwise movable arm pivoted to the downwardly extending arm of the bell crank and having surfaces in diierent lines in rear of its pivot, operating means actuated bv the universal bar and adapted to act upon either .of said surfaces to impart, different extents of movement to said arm and means for adjusting said arm tobring the .desired one of its surfaces into c operative relation to said operating means.

Ribbon mechanism for a typewriting machine comprisinga ribbon vibrator, a bell crank lever havin a horizontal'arm operatively connected wlth the vibrator and a downwardly'extending arm,an endwise movable arm pivoted to the downwardly extending arm of the bell-crank and having,r surfaces in different lines in rear of its pivot',

-. operating means actuated by the universal bar and adapted to act upon either of said surfaces to impart different extents of movement to said arm and means for adjusting said arm to bring the desired one of its snrfaces'into coperative relation to said operating means combined with adjustable stop devices acting to positively limit the respective movements of the ribbon vibrator.

6. Ribbon -mechanism for a type'w'riting machine, comprising a ribbon vibrator. its operating bell crank lever having one of its arms horizontally1 disposed and operatively connected with the vibrator, a horizontally1 disposed cndwise movable arm pivoted to the other arm of the bell crank lever and having at its rear surfaces at different distances from its pivot, a part operated by the movement of the universal bar and adapted to operate upon either of said surfaces to impart dillerent extents of movement. to the endwise movable arm and means Jfor adjustino' the rear end of said arm vertically to bring either of said surfaces into operative relation to said part to eiect a desired cxtent of movement of the vibrator, combined with adjustable stop devices acting to positively limit the respective movements of the vibrator.

j 7. Ribbon mechanism for ay typewriting machine, comprising a ribbon vibrator, its

operating bell crank lever having one of its arms horizontally' disposed and operatively connected with the. vibrator, a horizontally disposed endwise movable arm pivoted 1ntermediate its ends to the other arm of the bell crank lever and having' at, its rear end surfaces at different distances from its pivot, a part operated by the movement of the universal bar and adapted to 'operate upon either of said surfaces to impart different extents of movement to the endwise movable arm and means connected to the endwise movable arm in front of its pivot to effect adjustment of its rear end to bring either of said surfaces into operative relation to said part to effect a desired extent of movement of the vibrator, combined with adjustable stop devices acting to positively limit the respective movements of the vibrator.

8. Ribbon mechanism for a type-.writing machine, comprising a ribbon vibrator, its operating bell crank lever having one of its arms horizontally disposed and operatively connected with the vibrator, a. horizontally disposed endwise movable' arm pivoted intermediate. its ends to the other arm of the bell crank lever and having atits rear end surfaces at different distances from its pivot, a universal bar movable fore and aft of the machine on actuation of the character keys, a part actuated by the. movement of the universal bar and adapted to operate upon' either of said surfaces to impart different extents of movementto the endwise. movable arm, and adjustable means applied to the endwise movable part serving to move its rear end vertically to bring either of said surfaces into operative relation to said part' actuated by the universal bar to effect adesired extent of movement of the vibrator, combined with adjustable stop devices acting to positively limit the respective movements of thevibrator.

9. Ribbon mechanism for a typewriting machine comprising a ribbon vibrator, a bell crank lever having` a horizontal arm operatively connected with the vibrator and a, downwardly extending arm, an endwise movable arm pivoted to the downwardly extending arm of the bell crank and having surfaces in different lines in rear of its pivot, operating means actuated by the universal bar and adapted to act upon eitherV of said surfaces to impart different extents of movement to said arm and means for adjusting said arm to bring the desired one of its surfaces into coperatire relation to said operating means, combined with adjustable stop devi'ces acting to jgositively limit the respective movements o the vibrator.

10. Ribbon mechanism for a typewriting machine comprising the combination of a ribbon vibrator and adjustable means for' controlling the movement of the vibrator so that at will different; zones thereof may be printed from andthe ribbon removed from the eld of printing forstencil Work, said adjustable means comprising a controlling lever and three stops for positively limitin its movement, two of said stops being lixed Vand the third,` intermediate the other two,V

normally in the path of the lever, and adapted to be moved out. of the path of the lever when required for adjustment for stencil l1. The combination with the adjustable stop block, of the ribbon vibrator, its operating lever, the endwise movable link pivoted intermediate its ends to the lever and adapted to actuate it through dierent dis- EDWARD B. HESS. -Witnesses EDWARD L. Bonson, GEORGE F. HANDLEY. 

